pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5226-SirRogerDeCoverly0.ps) >>/Users/jc/w/tmp/Tune-5226-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/England/SirRogerDeCoverly0.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_5226.log 280115 Log file, useful mostly for debugging
Coll_52260.log 277305 Log file, useful mostly for debugging
Coll_52264.log 282925 Log file, useful mostly for debugging
Tune-5226-SirRogerDeCoverly0.abc 1914 ABC music file with the extracted tune(s)
Tune-5226-SirRogerDeCoverly0.ps 48370 PostScript
Tune-5226-SirRogerDeCoverly0.txt 1914 Plain-text file with the extracted tune(s)
Tune-5226-get.log 4574 Log file, useful mostly for debugging
Tune-52261-MurielsMeasure.abc 2167 ABC music file with the extracted tune(s)
Tune-52261-MurielsMeasure.ps 37804 PostScript
Tune-52261-MurielsMeasure.txt 2167 Plain-text file with the extracted tune(s)
Tune-52261-get.log 4484 Log file, useful mostly for debugging
These files should be available for 24 hours.